Class / Patent application number | Description | Number of patent applications / Date published |
123540100 |
Cylinders radiating
| 55 |
123580100 |
Cylinders in-line
| 23 |
123560100 |
Having rotary output shaft parallel to cylinders
| 12 |
123520200 |
Simultaneous compression, distinct pistons, restricted communication to a single combustion chamber
| 6 |
123530600 |
Cylinders having opposing heads | 5 |
20090090315 | HORIZONTALLY OPPOSED ENGINE - A horizontally opposed engine includes a first cylinder and a second cylinder, a first camshaft, a second camshaft, a crankshaft side sprocket, a first camshaft side sprocket, a second camshaft side sprocket, and a timing chain wound around the sprockets. The timing chain is wound so that it extends substantially parallel with an axis of the cylinders extending between the first camshaft side sprocket and the second camshaft side sprocket. An upper chain guide defines a guide rail that is arranged to ensure that the timing chain extends straight. The horizontally opposed engine has a single timing chain that is arranged to transmit a rotation of a crankshaft to a camshaft in each cylinder, and that is resistant to the effects of elongation of the timing chain. | 04-09-2009 |
20100186689 | INTERSTAGE VALVE IN DOUBLE PISTON CYCLE ENGINE - An interstage valve for fluidly coupling two chambers of a double-piston engine is disclosed. The interstage valve may include a main valve body, a seal, and an electric coil. When closed, the seal is coupled to the main valve body as a result of electromagnetic forces generated by the electrical coil. The interstage valve is opened when the pressure differential between the engine chambers exceeds the electromagnetic forces. As the interstage valve opens, the electromagnetic forces diminish. The electromagnetic valve moves from the open state to the closed state when the pressure differential reverses. As the seal moves toward the main valve body, the electromagnetic forces increase, coupling the seal to the main valve body. | 07-29-2010 |
20100307432 | CYLINDER LINKAGE METHOD FOR A MULTI-CYLINDER INTERNAL-COMBUSTION ENGINE AND A MULTICYLINDER LINKAGE COMPOUND INTERNALCOMBUSTION ENGINE - A cylinder linkage method for a multi-cylinder internal-combustion engine comprising connecting piston rods ( | 12-09-2010 |
20110005480 | Constant velocity engine/technology - Constant velocity internal combustion engines/designs capable of converting linear motion to rotary motion or rotary motion to linear motion include a gearshaft rather than a crankshaft, at least one pair of opposed and reciprocating pistons, and the gearshaft controlling the reciprocal linear translation of the pistons. | 01-13-2011 |
20140326201 | Action reaction combustion engine - An action reaction combustion engine comprising of one or more engines with one or more pistons having adequate mass being housed in mated cylinders and having two opposing heads also having valving plumbing fuel delivery and starting means and allowed to reciprocate on linear bearings delivering a workforce on each end of back and fourth stroke one force when the pistons compresses and stops and one force when fuel ignites or high pressure air pushes and drives the piston back producing four power events every one complete reciprocating cycle or revolution of the crank or other drive mechanism. | 11-06-2014 |
123530100 |
Cylinder offset from crankshaft axis | 2 |
20090145377 | Piston Assembly For Barrel Engine - A barrel engine includes a central drive shaft and a cam plate interconnected to the drive shaft. The barrel engine includes a plurality of cylinders each having a longitudinal axis that is generally parallel with the drive shaft. The axes of the cylinders are arranged in a generally circular manner about the drive shaft. A pair of guide rods are provided, which correspond to each cylinder of the engine. Each guide rod has an axis generally parallel with the axes of the cylinders. The barrel engine includes a plurality of piston assemblies. Each piston assembly includes a piston head slidably coupled to one of the cylinders for reciprocal movement along the axis of the cylinder Each piston assembly also includes a guide block slidably coupled to a respective pair of guide rods for guiding the piston head during reciprocal movement along the axis of the cylinder. | 06-11-2009 |
20160146008 | MOMENT-CANCELLING 4-STROKE ENGINE - A moment-cancelling, four-stroke engine is disclosed. The engine includes a first cylinder having a first piston and a second cylinder having a second piston, a first crankshaft operably connected to the first piston and a second crankshaft operably connected to the second piston. The first crankshaft rotates in a first direction and the second crankshaft rotates in a second direction that is opposite the first direction to cancel the moments applied to the engine and reduce engine vibration. | 05-26-2016 |
Entries |
Document | Title | Date |
20080236520 | Multicylinder engine for a vehicle, and vehicle incorporating same - A multicylinder engine for a motorcycle includes a valve actuation mechanism having a hydraulically-operated valve pausing mechanism for holding at least one of an intake valve and an exhaust valve of selected cylinders in a suspended state. The valve actuation mechanism operates the intake valve and the exhaust valve, and controls flow of oil through an oil passage which introduces working oil to the valve pausing mechanism from a hydraulic-pressure control device. Air-bleeding holes are formed in the cylinder head. The air-bleeding holes are fluidly connected with portions of the oil passages that are located at a highest level in the oil passages while the motorcycle is parked in an inclined state with its side stand down. | 10-02-2008 |
20080264360 | Method and apparatus for enabling control of fuel injection for an engine operating in an auto-ignition mode - There is provided a method and a control scheme to control an internal combustion engine operating in an auto-ignition mode by selectively activating a control scheme for controlling fuel injector operation based upon engine combustion parameters, e.g., IMEP or NMEP. The method comprises operating the engine in the auto-ignition combustion mode, and monitoring combustion in each of the cylinders. The fuel correction is selectively enabled only when either one of a partial burn and a misfire of a cylinder charge in one of the cylinders has been detected. | 10-30-2008 |
20100300384 | CRANKCASE CAST IN ONE PIECE FOR A MULTI-CYLINDER ENGINE - A crankcase ( | 12-02-2010 |
20110162598 | Mass driven motor with a middle signaling piston - The Mass Driven Motor with a Middle Signaling Piston is an internal combustion, two cycle free flowing piston motor that develops a linear-straight line force by the use of four cylinders and six pistons to accelerate a mass. The force is developed when the mass that lies in the horizontal position is accelerated and stopped and reaccelerated. The force developed is linear-straight line in nature. The force can be harnessed by simple-mere attachment and directed by the positioning of the vertical pistons, in other words-as the horns on a bull, which ever way the horns are pointing, that is the way its going. This allows the user to go in any direction he desires by aligning the vertical piston in that direction. | 07-07-2011 |
20120085301 | Internal Combustion Engine with Exhaust-Phase Power Extraction Serving Cylinder Pair(s) - A heat engine employs an auxiliary cylinder to receiving exhaust gases from a main cylinder during its exhaust phase to extract mechanical energy from the heat in the exhaust gases. The auxiliary cylinder has an auxiliary piston that reciprocates with an asymmetric pattern in respect to the main crank a counter-rotating auxiliary cranks such that the downward stroke of the auxiliary piston and the upward stroke of the auxiliary piston correspond to crank angles above and below 180 degrees. In one favorable embodiment, fresh air can be drawn in and combined with the exhaust gases. | 04-12-2012 |
20120103287 | Modifying an Internal Combustion Engine for Radical Ignition Combustion - Methods and apparatus for modifying an internal combustion engine for radical ignition combustion to aid ignition and enhance combustion. In one embodiment, the present invention includes a method of modifying an internal combustion engine with at least one cylinder to control the production and flow of radical ignition species. An exemplary method comprises inserting a cylinder liner into the at least one cylinder, the cylinder liner comprising at least one radical production member for providing and storing radical ignition species. The cylinder liner has a lip section and at least one production member is disposed inside of the lip section. The cylinder liner also has at least one vent to fluidly connect each of the at least one production member to each of at least one lined cylinder in an engine block. The method further comprises attaching the cylinder liner and at least one production member to the engine block. | 05-03-2012 |
20130220245 | ENGINE SYSTEM HAVING DEDICATED CYLINDER-TO-CYLINDER CONNECTION - An system is disclosed for use with an engine. The system may have an intake manifold configured to direct air into combustion chambers of the engine, and an exhaust manifold configured to direct exhaust from the combustion chambers to the atmosphere. The system may also have at least one conduit extending from a first of the combustion chambers to a second of the combustion chambers, and at least one valve associated with the at least one conduit. The at least one valve is configured to pass fluid from the first of the combustion chamber to the second of the combustion chambers during a compression stroke of a first piston within the first of the combustion chambers and during an expansion stroke of a second piston within the second of the combustion chambers. | 08-29-2013 |
20130220246 | W6-MOTOR - A W6 engine has two W3 engine units disposed juxtaposed on a common crankshaft. Exhaust pipes of the cylinders containing the pistons driving the common crankshaft are guided to an exhaust. Each cylinder has at least one intake valve and at least one exhaust valve. The intake valves for the individual cylinders are disposed in wall portions of the respective cylinders oriented in the same circumferential direction about the crankshaft or lateral portions of their cylinder head. The exhaust valves for the individual cylinders are disposed in opposite circumferential direction. Each exhaust valve closes an exhaust pipe, which is led from the valve seat of the exhaust valve to the outer surface of the W3 engine unit in which the cylinder with the exhaust valve is disposed. | 08-29-2013 |
20130306008 | SEALED T-JOINT ASSEMBLY - A sealed t-joint includes a first component having a first sealing surface, a second component having a second sealing surface, and a third component including a channel characterized by a channel height, channel width, and a channel depth. The t-joint also includes a gasket having a thickness and a protrusion characterized by a protrusion height, a protrusion width, and a protrusion depth. The protrusion height is less than the channel height, the protrusion width is less than channel width, and the protrusion depth is less than the channel depth. The t-joint additionally includes a polymer sealant. The gasket is compressed between the first and second sealing surfaces to generate a first and second component sub-assembly. Additionally, the polymer sealant is applied into the channel. The third component is subsequently assembled with the first and second component sub-assembly such that the protrusion extends into the channel to seal the t-joint. | 11-21-2013 |
20140165934 | MARINE PROPULSION DEVICE - A crankshaft includes a coupling portion, a first functional portion, and a second functional portion. The coupling portion is coupled to a connecting rod. The first functional portion is provided on an upper portion of the crankshaft protruding from a crankcase. The first functional portion drives a first functional component. The second functional portion is provided on a lower portion of the crankshaft protruding from the crankcase. The second functional portion drives a second functional component. The entire crankshaft has been processed by a first treatment to at least enhance the corrosion resistance thereof. At least a coupling portion of the crankshaft has been processed by a second treatment to at least enhance the strength thereof. Neither of the first functional portion and the second functional portion has been processed by the second treatment. | 06-19-2014 |
20140238320 | Engine Accessory Mount For Improved Stretch Belt Installation - An engine includes an engine structure defining a plurality of cylinders. A crankshaft is rotatably mounted to the engine structure and a plurality of pistons are each disposed in a corresponding one of the plurality of cylinders and drivingly connected to the crankshaft. A drive pulley is drivingly connected to the crankshaft. An accessory is mounted to the engine structure and includes a driven pulley connected to the drive pulley by a belt. The belt has a load direction extending through an axis of rotation of the drive pulley and the driven pulley. The accessory includes a housing having two slots extending generally parallel to the load direction of the belt and each receiving a fastener therein. A tensioner bolt is located between the two slots and extends generally parallel to the load direction to apply a tension force on the housing in the load direction. | 08-28-2014 |
20150007786 | FUEL SUPPLY APPARATUS OF INTERNAL COMBUSTION ENGINE - A secondary injector that is one of a plurality of injectors provided for each cylinder is arranged in an air cleaner and above an air funnel, an air cleaner bottom plate that has a passage hole for forming an intake passage is fastened and fixed to an upper surface of a throttle body, and the air funnel and a pipe support post for a secondary delivery pipe are fastened and fixed to the air cleaner bottom plate. | 01-08-2015 |
20150047583 | OIL COOLER - An assembly is provided herein. The assembly includes a cylinder block and a cooler coupled to the cylinder block positioned in a valley between two cylinder banks, the cooler including a lubricant passage having a first section configured to flow lubricant in an opposing direction to the flow of lubricant through a second section, the first and second sections each extending longitudinally from a first peripheral cylinder to a second peripheral cylinder in one of the cylinder banks. | 02-19-2015 |
20150322853 | Reciprocating-Piston Internal Combustion Engine - A reciprocating-piston internal combustion engine includes first, second, and third cylinders, and a crank drive having a crankshaft rotatably mounted in a crank housing. The crankshaft has first and second crank pins, wherein a first and a second connecting rod for a first and a second piston are assigned to the first crank pin, and a third connecting rod for a third piston is assigned to the second crank pin. The first and the second cylinder together with the first and the second piston are arranged in a V-shape, wherein the third cylinder together with the third piston is arranged in the V. | 11-12-2015 |
20150354509 | DONOR CYLINDER ENGINE SYSTEM IMPLEMENTING SKIP FIRING - An engine system is disclosed. The engine system may have a first bank of cylinders, a second bank of cylinders, a first intake manifold, and a second intake manifold. The engine system may also have a first exhaust manifold connecting the first bank of cylinders to the first and second intake manifolds, a second exhaust manifold connecting the second hank of cylinders to the atmosphere, a plurality of injectors, and a controller. The controller may be configured to inhibit the plurality of injectors associated with a first cylinder subset of the first and second banks of cylinders from firing for a first period of time spanning multiple engine cycles. The controller may also be configured to selectively inhibit the plurality of injectors associated with a second cylinder subset of the first and second banks of cylinders from firing for a second period of time following the first period of time. | 12-10-2015 |
20150369180 | SYSTEMS AND METHODS FOR STOPPING AND STARTING AN ENGINE WITH DEDICATED EGR - Methods and systems are provided for operating an engine including a DEGR system during start-stop and DFSO conditions. In one example, the DEGR cylinder may be deactivated prior to deactivating the non-DEGR cylinder group and stopping the engine, to purge EGR from the intake system. | 12-24-2015 |
20160146132 | METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE - A method of controlling an internal combustion engine having a plurality of cylinders, in particular a stationary internal combustion engine, wherein actuators of the internal combustion engine are actuable in crank angle-dependent relationship and/or sensor signals of the internal combustion engine can be ascertained in crank angle-dependent relationship, | 05-26-2016 |
20160146140 | OPERATION OF A QUANTITY-CONTROLLED INTERNAL COMBUSTION ENGINE HAVING CYLINDER DEACTIVATION - A method for operating a quantity-controlled internal combustion engine having at least two cylinders, including the following steps: ascertaining a present operating state; determining a number of cylinders or cylinder groups to be deactivated in dependence on the present operating state; deactivating or keeping deactivated a fuel supply for at least one cylinder to be deactivated or at least one cylinder group if at least one cylinder or at least one cylinder group is to be deactivated; and opening a flow-influencing element associated with the at least one cylinder or the at least one cylinder group for a fresh mass supply to the at least one cylinder to be deactivated or the at least one cylinder group to be deactivated. | 05-26-2016 |
20160195031 | PARTIAL DEACTIVATION OF AN INTERNAL COMBUSTION ENGINE | 07-07-2016 |
20160376980 | SINGLE-SHAFT DUAL EXPANSION INTERNAL COMBUSTION ENGINE - A single-shaft dual expansion internal combustion engine includes an engine block, a cylinder head and a crankshaft. First and second power pistons are moveable in first and second power cylinders and are connected to first and second crankpins of the crankshaft. An expander piston is moveable in an expander cylinder and is connected via a multi-link connecting rod assembly to a third crankpin of the crankshaft. A first balance shaft is arranged in a first longitudinal opening in the engine block, and a second balance shaft is arranged in a second longitudinal opening in the engine block. The first and second balance shafts have first and second counterweight portions, respectively, and the crankshaft has a third counterweight portion causing an imbalance in the crankshaft. | 12-29-2016 |
20190145324 | LUBRICATION SYSTEM OF AN INTERNAL COMBUSTION ENGINE AND METHOD OF OPERATING SAME | 05-16-2019 |